When the heroine Bo Zhuo was 12 years old, her childhood sweetheart Lin Chengchi met Gu Guoli, a Chinese returnee from France who was 3 years older. The three of them grew up together and tasted the sweetness and sourness of youth. Bo Zhuo fell in love with Gu Guoli and spent their whole life together. I was shocked to realize that everything was a conspiracy that had been planned long ago, and I was caught in the net from the beginning. The ties between family and life experience, Gu Guoli's heart is in vain, the misunderstanding is getting deeper and deeper, and the tragedy is getting worse. How should the three of them face all this...